Originally Posted by ArrowsFA1
:up:
Ferrari clearly found a solution that was not covered by the rules, and therefore not illegal. Teams constantly push the boundaries of the rules, and the FIA are constantly asked for clarification on technical issues. It's normal practice.
The only difference here is in how information reached the FIA that led them to issue a clarification, which in turn meant that every team (not just Ferrari) had to make changes to their floor in order to confirm to the revised test.